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KazamTools

Business & Seller Calculators

Know your real margin after platform fees, and create clean invoices in seconds.

Guides

Know your real margin

Platform fees, payment processing and currency conversion quietly eat into what you earn. These calculators show exactly what each platform keeps, using each platform's published fee schedule, so you can price with confidence.

Frequently asked questions

How current are the fee schedules?

Each calculator shows the date its fees were last checked and links to the platform’s official fee page.

Do you store invoices I create?

No. Invoices are generated in your browser and downloaded directly to your device.

Are the tools free?

Yes, with no sign-up.